::-webkit-datetime-edit { padding: 1px; background: url(/study/image/selection.gif); }
::-webkit-datetime-edit-fields-wrapper { background-color: #eee; }
::-webkit-datetime-edit-text { color: #4D90FE; padding: 0 .3em; }
::-webkit-datetime-edit-year-field { color: purple; }
::-webkit-datetime-edit-month-field { color: blue; }
::-webkit-datetime-edit-day-field { color: green; }
::-webkit-inner-spin-button { visibility: hidden; }
::-webkit-calendar-picker-indicator {
    border: 1px solid #ccc;
    border-radius: 2px;
    box-shadow: inset 0 1px #fff, 0 1px #eee;
    background-color: #eee;
    background-image: -webkit-linear-gradient(top, #f0f0f0, #e6e6e6);
    color: #666;
}